When I started driving, the speed limit was 70 by day, 60 at night. With the old sealed beam headlights, 50 was too fast on a really black night. When using the dims on my Contour SVT, 45 seems too fast. My recent lease car had HIDs and, while I really enjoyed the extra brightness, I hated the sharp cut-off when on dim. My first night out when new I about hit a herd of deer leaving town going about 45 (me, not the deer) because all I could see was their hooves. I'm willing to give up some brightness on bright for a fuller light pattern on dim. I just really hope the Focus has great halogen lights!